/*
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you under the Apache License, Version 2.0 (the
 "License"); you may not use this file except in compliance
 with the License.  You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing,
 software distributed under the License is distributed on an
 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 KIND, either express or implied.  See the License for the
 specific language governing permissions and limitations
 under the License.
 */
package org.apache.plc4x.java.ads.api.serial.types;

import io.netty.buffer.ByteBuf;
import org.apache.plc4x.java.ads.api.util.ByteValue;

import java.nio.charset.Charset;

import static java.util.Objects.requireNonNull;

public class UserData extends ByteValue {

    public static final int MAX_LENGTH = 255;

    public static final UserData EMPTY = UserData.of();

    private UserData(byte... values) {
        super(values);
        assertMaxLength();
    }

    public UserData(ByteBuf byteBuf) {
        super(byteBuf);
        assertMaxLength();
    }

    protected void assertMaxLength() {
        if (value.length > MAX_LENGTH) {
            throw new IllegalArgumentException("Max length " + MAX_LENGTH + " bytes exceeded by " + (value.length - MAX_LENGTH) + " bytes");
        }
    }

    public static UserData of(byte... values) {
        return new UserData(values);
    }

    public static UserData of(String value) {
        requireNonNull(value);
        return new UserData(value.getBytes());
    }

    public static UserData of(String value, Charset charset) {
        requireNonNull(value);
        return new UserData(value.getBytes(charset));
    }

    public static UserData of(ByteBuf byteBuf) {
        return new UserData(byteBuf);
    }

    @Override
    public String toString() {
        // TODO: maybe we could find a way to implement this to string
        return "UserData{" + value.length + "bytes} ";
    }
}